Eye-testing machine.



S. C. BARR.

EYE TESTING MACHINE.

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S. C. BARR.

EYE TESTING MACHINE. APPLICATION FILED APR. 27. 1917.

j I 1,266,090. Patented May14,1918.

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15 Emma w dow ei C2477 SAMUEL C. BARR, OF CHILLICOTHE, OHIO.

EYE-TESTING MACHINE.

Specification of Letters Patent. Patented BIay 14, 1918.

Application filed April 27, 1917. Serial No. 165,010.

To all whom it may concern:

. Be it known that I, SAMUEL C. BARR, a citizen of the United States,residing at Chillicothe, in the county of Ross and State of Ohio, haveinvented certain new and use ful Improvements in Eye-Testing Machines,of which the following is a specification, This "invention relates toeye testing machines and is particularly designed as an attachment tothe improved structure shown in my co-pending application, Serial Number133,54l6, filed November 27, 1916.

The main object of this invention resides in a structure whereby theprospective purchaser of eyeglasses, may also test the fittings such asthe frames or nose pieces which go therewith. In this connection, myinven tion'resid'esin the combination with a mir-' ror, of a pluralityof test frames arranged tobe successively brought into position to restupon the nose of the prospective purdisease that the latter may have aclear vision of the fit of the same.

A' further object of my invention resides in combining with the above, aresting structure against which the prospective purchaser may place hisface to permit a yielding adjustment with respect to any of the frames.In other words, this latter structure is provided forthe convenience ofthe prospective I purchaser.

Other objects of my invention become more apparent after a furtherdetailed description of the accompanying sheets of drawings, in whichsimilar characters of reference designate corresponding parts, and inwhich:

Figure 1 is a front elevation of proved type of testing machine,

I Fig. 2 is a cross section taken on line 22 of Fig. 1, and,

Fig. 3 is a top plan view of the structure shown in Figs. 1 and 2.

My invention is designed to be supported from any preferred structuresuch, for instance, as the machine shown in my pending applicationreferred to above, which may be designated in its entirety by thereference numeral 1. This structure 1 is provided with a pair of piercedears 2 which are designed to cofiiperate with similar ears 3 upon themain framework and through which the pivot rod at is designed to pass.This main framework comprises a pair of rear upstanding rods 5 connectedat their upper and lower ends by means of a pair of headers my im- 6 anda pair of vertically arranged front channel members 7, connected to thebars 5 by means of cross tie pieces 8. Rotatably journaled in each upperand lower tie piece 8 are a pair of sprockets 9, each pair being rigidlyconnected to each other by means of a plurality of cross pieces 10, asis shown. A pair of endless chains ll'are designed to pass over thesesprockets 10 in the manner shown, so that the forward strand of eachchain operates within its respective channel 7 to prevent it fromflexing, for a purpose to be described. At predetermined intervals,these chains are provided with suitable links 12 carrying studs 13 uponwhich the spectacle frames l4: are mounted. Anydesired' number ofspectacle frames may be carried by the chains in this manner, but careshould be taken so. that no two frames will be in horizontal alinenientwhen one is in the proper testing position. These chains are operated bymeans of the handle 15 which is rotatably j ournaled upon the tie piece16 and which carries a sprocket 17 operating within the cut-out portion18 of one of the channels 7. Rotation of this hand wheel 15 causes avertical movement of one of the. endless chains 11 and'because of therigid connection between the sprockets 9 due to'the cross pieces 10,both chains are given a similar movement. This correspondinglymo'ves'the various spectacle frames 14 to the desired testing position.

Properly located in the rear of the testing frame is a mirror 19 whichis also prefer ably pivotally hung along one edge, as shown at 20 to thesupporting structure 1 and is connected with the testing frame by meansof the connecting rod 21, this latter being pivotally mounted to themirror at 22 and to the framework at 23. Thus, when the main frameworkis swung around into operative position, it also swings the mirror 19around to this operative position, and thus, as the successive spectacleframes are brought to testing position, the prospective spectivepurchaser may adjust himself in the proper position, by pushing eitherone or both of the bowed strips 24 inwardly. In

this manner, the proper resting position of some distinguishing markthereon to receive the proper article.

What I claim, is:

1. In aneyeglass frame testing machine, the combination with a fixedsupport, of a frame pivotally connected with said support, an endlesseyeglass frame carrying chain rotatablymounted within said frame, ahingedly supported mirror movable in unison with said frame, and meansfor revolving said chain to selectively aline the chain carried eyeglassframes with said mirror.

2. In an eyeglass testing machine, a mirror, a plurality of lens framesmovably mounted with respect to said mirror to bring any to a testingposition opposite said 1nirror, and a resting structure against whichthe face is placed, said structure permitting a yielding adjustment withrespect to any of said frames.

In an eyeglass frame testing machine, the comblnation with a fixedsupport, of a Copies of this patent may be obtained for ror, a frameworklocated in front of said mirror, a' pair of endless chains carried bysaid framework, a plurality of lens frames supported between saidchains, means for moving said chains to bring any of said frames infront of said mirror, and means for guiding the front strands of saidchains to prevent their flexing when said frames are being tested.

5. In an eyeglass testing machine, a mirror, a framework located infront of saidmirror, a pair of endless chains carried by said framework,a plurality of lens frames supported between said chains, a channelguide piece for the front strand of each chain, and an upper and lowerresilient resting structure carried by said framework against which theface is placed, said resting structure permitting a yielding adjustmentwith respect to any of said frames.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL C. BARR. Witnesses WALTER S. Boon, A. L. PHELPs.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.". r

